Debt

Long term debt was as follows:



(in millions)	June 30, 2017			December 31, 2016
Revolving credit facility	$	70		$	—
Term loan A due 2021⁽¹⁾	719			694
Term loan B due 2023	846			750
Senior notes due 2024	510			510
Capital lease obligations	46			43
Principal Debt Balance	$	2,191		$	1,997
Debt issuance costs and unamortized discounts	(61		)	(56		)
Less: current maturities	(59		)	(28		)
Total Long-term Debt	$	2,071		$	1,913

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(1)	The aggregate principal debt for Term Loan A includes borrowings in both U.S Dollars and Euros.

Term Loan B Repricing

On April 7, 2017, we entered into Amendment No. 1 (the "Repricing Amendment") to the Credit Agreement, dated as of December 7, 2016. As a result of the Repricing Amendment, we were required to pay the Term B Lenders a 1% principal prepayment fee on approximately $848 million principal balance in the amount of approximately $8 million, and the Term B Loan interest rate was reduced by 1.5%, from 5.5% over LIBOR to 4.0% over LIBOR. The repricing of the Term B Loan interest rate is expected to result in substantial interest rate cost savings over the life of the Term B Loan. Transaction fees of $1 million were expensed.